RAVEMEN Q1 Bicycle Bell I received this from an acquaintance who said it was unopened and unused, but I'm selling it because I don't plan to use it. It's about 1300 yen on Amazon. Bicycle Bell Ring Type Hidden Design Loud Volume Clear Sound Aluminum Alloy 22-31.8mm Handlebar Compatible [Maximum 120dB Loud Volume & Refreshing Clear Sound Focused Design] By improving the vibration part, we have achieved up to 15% more volume than before. Normally 100-110dB, and up to 120dB in emergencies. The refreshing clear sound is not unpleasant to the ear, and the sound will definitely reach even on busy streets. (※Please do not insert the upper mount during the test) [22.2-31.8mm Wide Range Compatibility & Suitable for Various Vehicles] Includes two types of non-slip spacers, compatible with handlebar diameters of 22.2/25.4/31.8mm. Can be installed on all bicycles and kick scooters, such as road bikes, mountain bikes, cross bikes, folding bikes, and city cycles. [Ultra-lightweight 24g & Extremely Small Hidden Design] Ultra-lightweight and compact design, only 24g and about 4.5cm wide. Achieving the world's lightest class of lightness, as there is no AirTag storage space. The ring-type hidden design makes it inconspicuous and neat after installation.